We're using mgit2 as a name of a package as we forked the mgit tool. The name of this tool is a bit unfortunate so we might think how to name it (besides mgit3).
My propositions:
ogit as owesome (dead joke) git
pgit as pararel git
mrgit as multi-repo git
tigm (as tig is already reserved)
kgit similiary typed as mgit